Make some style fixes in tests

tests/unit/__init__.py

@@ -1,13 +1 @@
 """Dependency injector unit tests."""
-
-import unittest2 as unittest
-
-from dependency_injector import VERSION
-
-
-class VersionTest(unittest.TestCase):
-    """Version constant tests."""
-
-    def test_version_follows_semantic_versioning(self):
-        """Test that version follows semantic versioning."""
-        self.assertEquals(len(VERSION.split('.')))

tests/unit/providers/test_callable.py

@@ -2,7 +2,10 @@
 
 import unittest2 as unittest
 
-from dependency_injector import providers, errors
+from dependency_injector import (
+    providers,
+    errors,
+)
 
 
 class CallableTests(unittest.TestCase):

tests/unit/providers/test_creational.py

@@ -2,7 +2,10 @@
 
 import unittest2 as unittest
 
-from dependency_injector import providers, errors
+from dependency_injector import (
+    providers,
+    errors,
+)
 
 
 class Example(object):

tests/unit/providers/test_utils.py

@@ -2,8 +2,10 @@
 
 import unittest2 as unittest
 
-from dependency_injector import providers
+from dependency_injector import (
-from dependency_injector import errors
+    providers,
+    errors,
+)
 
 
 class IsProviderTests(unittest.TestCase):

tests/unit/test_common.py

@@ -1,4 +1,4 @@
-"""Common unittests."""
+"""Dependency injector common unit tests."""
 
 import unittest2 as unittest
 
@@ -6,8 +6,6 @@ from dependency_injector import VERSION
 
 
 class VersionTest(unittest.TestCase):
-    """Version constant tests."""
 
     def test_version_follows_semantic_versioning(self):
-        """Test that version follows semantic versioning."""
         self.assertEquals(len(VERSION.split('.')), 3)